We recently moved our Oracle server from a remote location to a local server and now the Oracle clients keep disconnecting.
It does not seem to be a timeout issue because it happens while we are actively using it. We are using Oracle SQL Developer, PL/SQL Developer, and Toad. We are running Oracle 12 Enterprise on a VM.
We do not see any errors - our sessions just drop. Our server is running on a VM on Redhat 7. We are running the clients on Windows. Often when we run a query we have to wait for it to re-initialize before the query is executed. Hence we are assuming that since it has to re-initialize that our session dropped.
When we write a query the client (Toad, PL/SQL Developer, etc) has to reconnect in order to execute the query. I would understand if we stepped away but we are actively writing queries and executing them and then the client disconnects and has to reconnect in order to execute.
How can we solve or debug this issue?